<template>
  <div class="analysis-board">
    <div class="controls">
      <button @click="goToStart">开始</button>
      <button @click="prevMove">上一步</button>
      <button @click="nextMove">下一步</button>
      <button @click="goToEnd">结束</button>
      <div class="move-number">
        步数: {{ currentMoveIndex + 1 }} / {{ totalMoves }}
      </div>
    </div>

    <div class="board-container">
      <div class="chess-board">
        <div v-for="row in 8" :key="row" class="board-row">
          <div 
            v-for="col in 8" 
            :key="col" 
            class="board-cell"
            :class="[
              getCellColor(row, col),
              { 'highlighted': isHighlighted(row-1, col-1) }
            ]"
          >
            <ChessPiece
              v-if="getPiece(row-1, col-1)"
              :piece="getPiece(row-1, col-1)"
              :mini="false"
            />
          </div>
        </div>
      </div>

      <div class="analysis-info">
        <div class="position-evaluation">
          局面评分: {{ currentEvaluation }}
        </div>
        <div class="best-moves">
          <h4>最佳着法:</h4>
          <div v-for="(move, index) in bestMoves" :key="index">
            {{ index + 1 }}. {{ move }}
          </div>
        </div>
      </div>
    </div>

    <div class="move-list">
      <div 
        v-for="(move, index) in moveHistory" 
        :key="index"
        :class="{ 'current-move': index === currentMoveIndex }"
        @click="goToMove(index)"
      >
        {{ Math.floor(index/2) + 1 }}. {{ move }}
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
import { ref, computed } from 'vue'
import ChessPiece from './ChessPiece.vue'
import { useGameState } from '../composables/useGameState'

const props = defineProps<{
  moveHistory: string[]
}>()

const currentMoveIndex = ref(-1)
const boardStates = ref<(string | null)[][]>([])
const currentEvaluation = ref(0)
const bestMoves = ref<string[]>([])

const totalMoves = computed(() => props.moveHistory.length)

interface Analysis {
  evaluation: number
  bestMoves: string[]
}

const analyzePosition = (
  board: (string | null)[][],
  moveHistory: string[]
): Analysis => {
  return {
    evaluation: 0,
    bestMoves: []
  }
}

const goToMove = (index: number) => {
  currentMoveIndex.value = index
  updateAnalysis()
}

const goToStart = () => {
  currentMoveIndex.value = -1
  updateAnalysis()
}

const goToEnd = () => {
  currentMoveIndex.value = totalMoves.value - 1
  updateAnalysis()
}

const prevMove = () => {
  if (currentMoveIndex.value > -1) {
    currentMoveIndex.value--
    updateAnalysis()
  }
}

const nextMove = () => {
  if (currentMoveIndex.value < totalMoves.value - 1) {
    currentMoveIndex.value++
    updateAnalysis()
  }
}

const getCellColor = (row: number, col: number) => {
  return (row + col) % 2 === 0 ? 'white-cell' : 'black-cell'
}

const isHighlighted = (row: number, col: number) => {
  return false // 可以根据需要实现高亮逻辑
}

const getPiece = (row: number, col: number) => {
  return boardStates.value[currentMoveIndex.value + 1]?.[row]?.[col] || null
}

const updateAnalysis = () => {
  const currentBoard = boardStates.value[currentMoveIndex.value + 1]
  if (!currentBoard || !Array.isArray(currentBoard)) return

  if (currentBoard.every(row => Array.isArray(row))) {
    const analysis = analyzePosition(currentBoard, props.moveHistory)
    currentEvaluation.value = analysis.evaluation
    bestMoves.value = analysis.bestMoves
  }
}

// ... 其他辅助方法 ...
</script>

<style scoped>
.analysis-board {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 20px;
  padding: 20px;
}

.controls {
  display: flex;
  gap: 10px;
  align-items: center;
}

.board-container {
  display: grid;
  grid-template-columns: auto 300px;
  gap: 20px;
}

.analysis-info {
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.move-list {
  max-height: 200px;
  overflow-y: auto;
  padding: 10px;
  border: 1px solid #ccc;
}

.current-move {
  background-color: #e3f2fd;
  font-weight: bold;
}

/* ... 其他样式 ... */
</style> 